AMD boards: Fix typos

Change-Id: I090e98fbf28595d3917ef84e19bd6d6742f11b94
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/6108
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
12 files changed